Which of the following statements about the Panchayati Raj System are correct ?
1. All seats in a Panchayat are filled by persons chosen by direct election,
2. The 'Gram Sabha' consists of persons registered in the village electoral rolls.
3. The Chairperson of a Panchayat is elected in accordance with a law passed by each state.
4. All states in India have a three-tier system of Panchayats.
Select the correct answer using the code given below :

Options

A. 1 and 4 only
B. 1, 2 and 3 only
C. 2 and 3 only
D. 2, 3 and 4 only